{ config, lib, pkgs, ... }:

let cfg = config.jade.neovim;
in with lib; {
  options.jade.neovim = {
    enable = mkEnableOption "Enable neovim";
  };
  config = mkIf cfg.enable {
    home-manager.users.jade = { pkgs,... } : {
      programs.neovim = {
        enable = true;
	viAlias = true;
	vimAlias = true;
	vimdiffAlias = true;
        # Plugins {{{
	plugins = with pkgs.vimPlugins; [
	  nerdtree-git-plugin
      ctrlp-vim
	  vim-nerdtree-syntax-highlight
      vim-devicons
	  vim-nix
      vim-pug
      coc-rust-analyzer
      coc-git
      coc-fzf
      coc-css
      coc-yaml
      coc-json
      coc-html
      coc-emmet
      coc-vimlsp
      coc-tsserver
      {
        plugin = gruvbox-nvim;
        config = "colorscheme gruvbox";
      }
      { 
	    plugin = nerdtree; 
	    config = "nmap <C-n> :NERDTreeToggle<CR>";
	  }
	  {
	    plugin = nerdcommenter;
	    config = ''
	      vmap ++ <plug>NERDCommenterToggle
              nmap ++ <plug>NERDCommenterToggle
            '';
	  }
	];
        # }}}
        # Coc {{{
        coc = {
          enable = true;
          settings = { };
          pluginConfig = ''
            nmap <silent> gd <Plug>(coc-definition)
            nmap <silent> gy <Plug>(coc-type-definition)
            nmap <silent> gi <Plug>(coc-implementation)
            nmap <silent> gr <Plug>(coc-references)
            nnoremap <silent> K :call <SID>show_documentation()<CR>
            nmap gr <Plug>(coc-rename)
            nmap <leader>ac  <Plug>(coc-codeaction)
            nmap <leader>qf  <Plug>(coc-fix-current)
          '';
        };
        # }}}
        extraConfig = ''
          set fdm=marker

          nmap H _
          vmap H _

          nmap L $
          vmap L $

          " terminal normal mode
          tnoremap <Esc> <C-\><C-n>

          " j/k move virtual lines (wrapped)
          noremap <silent> <expr> j (v:count == 0 ? 'gj' : 'j')
          noremap <silent> <expr> k (v:count == 0 ? 'gk' : 'k')

          set relativenumber
          set number

          set smarttab
          set cindent
          set tabstop=4
          set shiftwidth=4

          " Emacs Insert mode/command mode hotkeys {{{
          " movement
          inoremap <C-f> <Right>
          inoremap <C-b> <Left>
          inoremap <C-p> <Up>
          inoremap <C-n> <Down>
          cnoremap <C-f> <Right>
          cnoremap <C-b> <Left>
          cnoremap <C-p> <Up>
          cnoremap <C-n> <Down>

          inoremap <C-e> <C-o>$
          inoremap <C-a> <C-o>_
          cnoremap <C-e> <C-o>$
          cnoremap <C-a> <C-o>_

          inoremap <M-f> <C-Right>
          inoremap <M-b> <C-Left>
          inoremap <M-e> <C-o>)
          inoremap <M-a> <C-o>(
          cnoremap <M-f> <C-Right>
          cnoremap <M-b> <C-Left>
          cnoremap <M-e> <C-o>)
          cnoremap <M-a> <C-o>(

          inoremap <M-<> <Esc>ggi
          inoremap <M->> <Esc>Gi
          cnoremap <M-<> <Esc>ggi
          cnoremap <M->> <Esc>Gi

          " editing
          inoremap <C-d> <Del>
          inoremap <M-BS> <C-o>db
          inoremap <M-d> <C-o>de
          cnoremap <C-d> <Del>
          cnoremap <M-BS> <C-o>db
          cnoremap <M-d> <C-o>de

          inoremap <C-s> <C-o>/
          inoremap <C-r> <C-o>?
          " }}}
        '';
      };
    };
  };
}